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(Libretro GL Test) Add fixed-function GL codepath

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This commit is contained in:
twinaphex 2016-01-29 02:34:06 +01:00
parent d81d6058cd
commit 58f619dc22
1 changed files with 64 additions and 10 deletions
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74
cores/libretro-test-gl/libretro-test.c
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@ -8,6 +8,10 @@
#include "../../libretro.h"
#if 0
#define GL_FF
#endif
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
static struct retro_hw_render_callback hw_render;
@ -35,13 +39,14 @@ static struct retro_hw_render_callback hw_render;
#define MAX_HEIGHT 2048
#endif
static unsigned width = BASE_WIDTH;
static unsigned width = BASE_WIDTH;
static unsigned height = BASE_HEIGHT;
#ifndef GL_FF
static GLuint prog;
static GLuint vbo;
#ifdef CORE
#if defined(CORE)
static bool context_alive;
static bool multisample_fbo;
static unsigned multisample;
@ -49,10 +54,7 @@ static GLuint vao;
static GLuint fbo;
static GLuint rbo_color, rbo_depth_stencil;
#endif
#ifdef CORE
static const char *vertex_shader[] = {
"#version 140\n"
"uniform mat4 uMVP;",
@ -95,7 +97,10 @@ static const char *fragment_shader[] = {
"}",
};
#endif
#endif
#ifndef GL_FF
static void compile_program(void)
{
prog = glCreateProgram();
@ -114,7 +119,7 @@ static void compile_program(void)
glDeleteShader(frag);
}
#ifdef CORE
#if defined(CORE)
static void init_multisample(unsigned samples)
{
multisample = samples;
@ -170,7 +175,9 @@ static void init_multisample(unsigned samples)
fprintf(stderr, "Multisampled FBOs not supported.\n");
}
#endif
#endif
#ifndef GL_FF
static void setup_vao(void)
{
static const GLfloat vertex_data[] = {
@ -184,7 +191,7 @@ static void setup_vao(void)
1.0, 0.0, 1.0, 1.0,
};
#ifdef CORE
#if defined(CORE)
glGenVertexArrays(1, &vao);
#endif
@ -197,6 +204,7 @@ static void setup_vao(void)
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgram(0);
}
#endif
void retro_init(void)
{}
@ -218,7 +226,11 @@ void retro_set_controller_port_device(unsigned port, unsigned device)
void retro_get_system_info(struct retro_system_info *info)
{
memset(info, 0, sizeof(*info));
#ifdef GL_FF
info->library_name = "TestCore GL (FF)";
#else
info->library_name = "TestCore GL";
#endif
info->library_version = "v1";
info->need_fullpath = false;
info->valid_extensions = NULL; // Anything is fine, we don't care.
@ -342,6 +354,8 @@ static void update_variables(void)
#endif
}
static unsigned frame_count;
void retro_run(void)
{
bool updated = false;
@ -354,6 +368,37 @@ void retro_run(void)
{
}
#ifdef GL_FF
int width = BASE_WIDTH * 4;
int height = BASE_HEIGHT * 4;
float ratio = width / (float)height;
glBindFramebuffer(RARCH_GL_FRAMEBUFFER, hw_render.get_current_framebuffer());
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-ratio, ratio, -1.f, 1.f, 1.f, -1.f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glRotatef((float)frame_count * 2, 0.0f, 0.0f, 0.1f);
glLoadIdentity();
glBegin(GL_TRIANGLES);
glColor3f(1.f, 0.f, 0.f);
glVertex3f(-0.3f, -0.3f, 0.f);
glColor3f(0.f, 1.f, 0.f);
glVertex3f(0.3f, -0.3f, 0.f);
glColor3f(0.f, 0.f, 1.f);
glVertex3f(0.0f, 0.3f, 0.f);
glEnd();
#else
#ifdef CORE
glBindVertexArray(vao);
if (multisample_fbo)
@ -381,8 +426,6 @@ void retro_run(void)
int loc = glGetUniformLocation(prog, "uMVP");
static unsigned frame_count;
frame_count++;
float angle = frame_count / 100.0;
float cos_angle = cos(angle);
float sin_angle = sin(angle);
@ -425,6 +468,10 @@ void retro_run(void)
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
#endif
#endif
frame_count++;
video_cb(RETRO_HW_FRAME_BUFFER_VALID, width, height, 0);
}
@ -432,18 +479,22 @@ static void context_reset(void)
{
fprintf(stderr, "Context reset!\n");
rglgen_resolve_symbols(hw_render.get_proc_address);
#ifndef GL_FF
compile_program();
setup_vao();
#ifdef CORE
context_alive = true;
init_multisample(multisample);
#endif
#endif
}
static void context_destroy(void)
{
fprintf(stderr, "Context destroy!\n");
#ifndef GL_FF
#ifdef CORE
glDeleteVertexArrays(1, &vao);
vao = 0;
@ -454,6 +505,7 @@ static void context_destroy(void)
vbo = 0;
glDeleteProgram(prog);
prog = 0;
#endif
}
#ifdef GLES
@ -471,7 +523,9 @@ static bool retro_init_hw_context(void)
hw_render.context_reset = context_reset;
hw_render.context_destroy = context_destroy;
hw_render.depth = true;
#ifndef GL_FF
hw_render.stencil = true;
#endif
hw_render.bottom_left_origin = true;
if (!environ_cb(RETRO_ENVIRONMENT_SET_HW_RENDER, &hw_render))
@ -482,7 +536,7 @@ static bool retro_init_hw_context(void)
#else
static bool retro_init_hw_context(void)
{
#ifdef CORE
#if defined(CORE) && !defined(GL_FF)
hw_render.context_type = RETRO_HW_CONTEXT_OPENGL_CORE;
hw_render.version_major = 3;
hw_render.version_minor = 1;